loo mis



A. w. ,LooMIs or' .ATWATEIL `lOHIO.

Letters Pate/at No. 83,515, dated October- 27, 1868.. n

GAUGE 'POR STONE-WARE.

The Schedule referred to in these Letters Patent and making part of the same.

Allo-.all whom' it may concern:

Be it known that I, A. W. LooMIs, ofAtwater, inthe county of Portage, and State of Ohio, have invented certain new and useful Improvements in Gauges for Manufacturing Stone-Ware; and I do hereby declare that the following is a full and complete description of Ithe same, reference being hadto the accompanying drawings, making a part ofthis specidcation, in which- Figures 1 and 2 are side views of the gauges, shown in .different positions. Y

Like letters of reference refer to like parts in the several views.

The nature of this invention relates to a gauge, so constructed and arranged that the inside of articles of stone-'ware are fashioned and smoothed to a given and uniform size, obtaining thereby a truthfulness in their holding-capacity, and `a smoothness of finish unobtained inthe ordinary Way of manufacture.

In 'g. 1, A represents the turn-table or wheel, on which the clay is placed and fashioned. `Near to this table is an upright post or standard, B, into which is screwed a stay, O. In said stay is pivoted one end of the levers D E, as represented.

F is the gauge, and which is attached to the lever by means of set-screws, a, passedv through the lever in a slot, b, whereby said gauge may be adjusted, as and for a purpose hereinafter shown.

. It will be observed that gauge F is constructed with two right angles, whereas gauge G consists of but one angle, provided with aY dependent point, H, whereby is formed a slightly rounded shoulder at the point x,

iig. 2, the purpose of which will hereinafter be shown.

Fruitejars of stone-ware are usually made inltwo parts, the upper and lower, each being fashioned by hand, which are then carefully put together, and the joint smoothed down even with the surface of the jar In consequence of 'their being made in two parts,

great care and skill are required to be exercised in order to make the two parts of an exact diameter, so that they'sliall produce, when together, an even surface. This, however, is a matter not easily performed, and the jars, in consequence, are often irregular in shape, 'and not uniform in size.

In order to lessen this trouble andpcare, is the purpose-of this invention, theI operation of which is as follows, viz:

A lump of clay, of the proper size for the lower part Aof the jar, is placed upon the wheel. This is rudely fashioned by handnear tothe required shape and size.

The gauge F is then introduced in the section, as shown in iigsl, in which it will be `seen'that the gauge in width, is just`one-l1alfthe diameter oftherinside of the jar, so' that as the jar revolves, one-half ofthe bottom passes under the gauge, whereby' it is worked and levelled .down to the proper thickness, and smoothed oi.

The sides also are worked and-smoothed ci? by the limb F of the gauge, against which the side of the jar rubs as it is whirled around.

This gauge being adj usted at a certain distance on the handle 'E, will, as a consequence, expand-fthe clay on the side of thevessel as 'far as the outside of the limbrof the gauge; hence the sides of each jar will be acted upon by the gauge at the same vertical line, and therefore all the jars will have an equal internal diameter. rIhe depth of each part being determined by'a mark on the gauge, all the parts will have an lequal depth. i

The top of the jar is made in a similar way. Y The material being rudely shaped near tothe required size, the gauge is then inserted in the half-fashioned top. The point a, referred to, is made to enter the opening or mouth ofthe jar I, fig. 2. As the clay revolves, the gauge is gradually brought to a vertical position, as shown, and which, being adjusted on the lever at the same distance as that above described, the sides will be expanded to the same vertical line; hence the top will be of the exact diameter of the bottom. At the same time the sides are smoothed oif, and theinner edge ofthe opening or mouth, I, rounded by the shoulder By this means, it will be evident that thetop and lower parts of the jar w-ill be of an equal diameter, so that when the two parts are put together, they will eX- actly correspond; hence little or no trouble will be found in uniting them. l p

Any number of jars made in this way will have their holding-capacity equal, and an internal smoothness of nish not obtained in the ordinary way of manufacture.

What I claim as my invention, and desire to secure by Letters Patent, is

The adjustable gauges G `and F, in combination with the'handles DE, when arranged in relation to a potters wheel, in the manner as and for the purposespecified.

. A. W. LOOMIS.

Witnesses: i

J. H. Bussines,

FRANK S.- ALBEN. 

